Good front end for KVM?

Hi All, What’s everyones favorite front end for KVM? I’m looking to use KVM for several VMs (Win, CentOS6, CentOS7) and was looking for something a bit easier to start out on than raw virt-manager. Host OS: MX Linux 18 [Foundation, Debian Stable 9.6 (Stretch)] Desktop: TDE 14.0.6 Thanks, Michael PS: This was my original question, before I realized, asking about a front end was a better choice. Pretty much only applicable if someone here has used, and liked, Boxes... Was: Figuring out Gnome dependencies? I haven’t used Gnome in more than a decade. I found this Gnome app I’d like to try out: Boxes, Virtualization made simple https://wiki.gnome.org/Apps/Boxes https://www.openhub.net/p/gnome-boxes and was wondering how to A) find out what its dependencies are and B) how to actually install it. A side excursion, trying to figure out B), lead me to Flatpak[1]. I’ve never heard of it before, anyone have any experience or opinions on it? Mostly I don’t want to end up installing most of Gnome just to try out an app. [1] https://flatpak.org/